\section{Data Structures}
Here are the data structures with brief descriptions:\begin{CompactList}
\item\contentsline{section}{\hyperlink{structptl__q}{ptl\_\-q} }{\pageref{structptl__q}}{}
\item\contentsline{section}{\hyperlink{structptl__q__element}{ptl\_\-q\_\-element} }{\pageref{structptl__q__element}}{}
\item\contentsline{section}{\hyperlink{structptl__q__funcs}{ptl\_\-q\_\-funcs} }{\pageref{structptl__q__funcs}}{}
\end{CompactList}
